Loaders don't add a lot more overhead over what is required to query a content provider for a cursor, so feel free to use them for one-shot operations.
Of course be prepared for this one-shot operation to continue executing across activity instances if your activity gets restarted. If you aren't going to deal well with this case, I'm not sure a loader really buys you much over just doing the query in an async task. On Tue, Sep 20, 2011 at 5:27 PM, goosedroid <[email protected]> wrote: > I'm just getting familiar with the Loader framework, but they seem > geared for queries where you keep the cursor around, so the Loader can > manage / requery when changes occur to the underlying Uri. > > But what about those queries that are one-shot type things, where you > need the data in the cursor for some reason, and then just want to > close it right away? > > I guess I could do something like this in > LoaderManager.LoaderCallbacks.onLoadFinished(Loader<D> loader, D data) > > { > ... get required data out of cursor > getLoaderManager().destroyLoader(loader.getId()); > } > > This seems kinda heavy though in situations where i expect to be doing > many of these kinds of queries. I would expect a bunch of bookkeeping > to get updated, as well as GC activity too. > > Should I keep using AsyncQueryHandler for this scenario? > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- Dianne Hackborn Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
